Helicobacter cynogastricus
  1. K. Van den Bulck, A. Decostere, M. Baele, P. Vandamme, J. Mast, R. Ducatelle, and F. Haesebrouck. Helicobacter cynogastricus sp.
    nov., isolated from the canine gastric mucosa. Int J Syst Evol Microbiol July 2006 56:1559-1564
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Phylum Proteobacteria, Class Epsilonproteobacteria, Order Campylobacterales, Family Helicobacteraceae, Genus Helicobacter,
Helicobacter cynogastricus Van den Bulck et al. 2006.
Gram-negative, tightly coiled spirals that are up to 1 x 10-18 μm. Motile by means of
tufts of 6-12 sheathed flagella at one or both ends of the cell. Coccoid forms develop
in old cultures. Non-sporulating.
Growth on moist agar plates occurs as a spreading film or as an oily layer on
biphasic culture media in a microaerobic and anaerobic atmosphere. Pinpoint
colonies may be formed on agar plates. Grows at 30 and 37 ºC, not at 25 or 42 ºC. No
aerobic growth. No growth on media containing 1% ox bile, 1% glycine or 1.5% NaCl.
Isolated from the gastric mucosa of a dog.
Undetermined.
Positive results for urease, catalase, oxidase, gamma-glutamyltranspeptidase, TTC, nitrate reduction, alkaline phosphatase,
esterase, and L-arginine arylamidase.

Negative results for  hyppurate hydrolysis, indoxyl acetate hydrolysis, pyrrolidonyl arylamidase, and L-aspartate arylamidase.
(c) Costin Stoica
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